<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>waterfall-layout</title>
    <link rel="stylesheet" href="css/index.css" />
</head>
<body>
<div id="container" class="main-container"></div>
<script type="text/javascript" src="js/waterfall.js"></script>
</body>
</html>